Brief description of the friction welding mixing of two different materials placed end to end, with the aid of a thermally insulating element

摘要

The present invention relates to a process for the friction welding mixing of two metallic materials or metal alloys along an interface between the two materials, one end of a pin of the mixing of the rotary friction that is applied on the surface of the two materials at the level of their interface, the first material which is converted more quickly in the pasty state under the effect of the rotation of the pin that the second. According to the invention, the method comprises a step of heating of the second material (2) to a predetermined temperature at the interface with the first material (1), whereas a thermally insulating element (5) is disposed at the interface between the two materials, the insulating element being replaced by the first and second material in the pasty state during the welding.